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COSTS AND EXPENSES BY NATURE (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure of expenses by nature [text block] [Abstract]

Disclosure of general and administrative expense [text block]

		For the year ended
		December 31,
		2019				2018				2017
		ThUS$				ThUS$				ThUS$
Aircraft fuel			2,929,008				2,983,028				2,318,816
Other rentals and landing fees (*)			1,275,859				1,206,881				1,233,640
Aircraft maintenance			444,611				366,627				422,943
Comisions			221,884				222,506				252,474
Passenger services			261,330				280,279				288,662
Other operating expenses			1,291,895				1,229,311				1,374,368
Total			6,424,587				6,288,632				5,890,903

(*) Lease expenses are included within this amount (See Note 2.21)

Schedule of Payments for leases of low-value assets

		For the period ended
		December 31,
		2019				2018				2017
		ThUS$				ThUS$				ThUS$
						Restated				Restated
Payments for leases of low-value assets			31,982				27,929				35,240
Total			31,982				27,929				35,240

Disclosure of depreciation and amortisation expense [text block]

		For the year ended
		December 31,
		2019				2018				2017
		ThUS$				ThUS$				ThUS$
Depreciation (*)			1,389,465				1,307,032				1,318,725
Amortization			80,511				65,596				58,410
Total			1,469,976				1,372,628				1,377,135

(*) Included within this amount is the depreciation of the Properties, plants and equipment (See Note 17 (a)) and the maintenance of the aircraft recognized as assets by right of use. The maintenance cost amount included in the depreciation line for the period ended December 31, 2019 is ThUS$ 445,680 and ThUS$ 366,393 for the same period 2018.

Schedule of finance costs

		For the year ended
		December 31,
		2019				2018				2017
		ThUS$				ThUS$				ThUS$
Bank loan interest			325,650				283,786				347,551
Financial leases			61,980				62,202				37,522
Lease liabilities			181,814				182,868				185,947
Other financial instruments			20,490				10,281				8,213
Total			589,934				539,137				579,233

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